Answer: Gardenias have some very specific growing needs and if these are not met they will refuse to open their flower buds. For flower buds to form and thrive, night temperatures need to be between 60-65F. During the day, temperatures should be 70-75F. A very constant, even temperature is required or buds will drop or fail to open. Bright light is essential, but avoid direct mid-day sun in the summer or the leaves might scorch. Keep the soil moist at all times except winter when watering should be reduced. Mist the leaves frequently, and repot every 2-3 years. Don't wrap your plants with plastic - that will only impede good air circulation which can lead to fungal diseases. Hope this information answers all your questions. Good luck with your gardenias!
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